CN212330226U - Conveying pipeline girth welding device - Google Patents

Conveying pipeline girth welding device Download PDF

Info

Publication number
CN212330226U
CN212330226U CN202020985863.XU CN202020985863U CN212330226U CN 212330226 U CN212330226 U CN 212330226U CN 202020985863 U CN202020985863 U CN 202020985863U CN 212330226 U CN212330226 U CN 212330226U
Authority
CN
China
Prior art keywords
arc
shaped plate
semicircular
semicircular arc
conveying pipeline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020985863.XU
Other languages
Chinese (zh)
Inventor
刘春峰
巩新远
王磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Xingdong Pipeline Co ltd
Original Assignee
Hebei Xingdong Pipeline Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Xingdong Pipeline Co ltd filed Critical Hebei Xingdong Pipeline Co ltd
Priority to CN202020985863.XU priority Critical patent/CN212330226U/en
Application granted granted Critical
Publication of CN212330226U publication Critical patent/CN212330226U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The utility model relates to the technical field of pipeline welding equipment, in particular to a conveying pipeline girth welding device; the welding machine can replace manual welding with machinery, so that the welding quality is better and the efficiency is higher; the welding gun is electrically connected with the welding machine body; still include first semicircle arc, second semicircle arc, the sliding seat, servo motor, the mounting panel, adjust the seat, two sets of bearing support and regulation lead screw, the front end and the rear end of first semicircle arc all articulate and are provided with connecting bolt, the front end and the rear end of second semicircle arc all are provided with the open slot, the spiral shell is equipped with butterfly nut on the connecting bolt, all be provided with two sets of internal thread pipes on first semicircle arc and the second semicircle arc, the spiral shell is installed and is provided with the tight screw rod in two sets of internal thread pipes, the one end that the tight screw rod in top is close to pipeline is provided with the ARC fixed plate, the inner wall right part of first semicircle arc and second semicircle arc is provided with first semicircle slide rail and the semicircular slide rail of second respectively.

Description

Conveying pipeline girth welding device
Technical Field
The utility model relates to a pipeline welding equipment's technical field especially relates to a conveyer pipe way girth welding set.
Background
As is well known, a girth welding device for a conveying pipeline is a device for welding a conveying pipeline with a large pipe diameter, and is widely used in the field of pipeline welding devices; the existing conveying pipeline girth welding device comprises a welding gun and a welding machine body, wherein the welding gun is electrically connected with the welding machine body; when the existing conveying pipeline girth welding device is used, a welding gun is manually held to weld the joint of the conveying pipeline; the existing circular seam welding device for the conveying pipeline is found in use that a large amount of heat is generated during welding operation, the temperature of the surrounding environment is increased, an operator works for a long time under high-temperature roasting, sunstroke is easily caused in high-temperature weather such as summer, the operator is easy to fatigue after working for a long time, the stability of a manually-held welding gun is poor, the welding quality is influenced, and certain use limitation is caused.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a to prior art not enough, the utility model provides a replace manual work with machinery and weld, welding quality is better, the higher pipeline girth welding set of efficiency.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a conveying pipeline girth welding device is used for welding a conveying pipeline with a large pipe diameter and comprises a welding gun and a welding machine body, wherein the welding gun is electrically connected with the welding machine body; the bearing support and the adjusting screw rod are respectively provided with a first semicircular arc plate, a second semicircular arc plate, a sliding seat, a servo motor, a mounting plate, an adjusting seat, two groups of bearing supports and an adjusting screw rod, the front end and the rear end of the first semicircular arc plate are respectively hinged with a connecting bolt, the front end and the rear end of the second semicircular arc plate are respectively provided with an open slot, a butterfly nut is screwed on the connecting bolt, the first semicircular arc plate and the second semicircular arc plate are connected through the connecting bolt, the first semicircular arc plate and the second semicircular arc plate are respectively provided with two groups of internal thread pipes, the two groups of internal thread pipes are internally provided with a jacking screw rod, one end of the jacking screw rod close to the conveying pipeline is provided with an arc fixing plate, the arc fixing plate is rotatably connected with the jacking screw rod, and the right parts of the inner walls of the first semicircular arc plate and the second semicircular arc plate are respectively provided with a first semicircular slide rail and a second semicircular slide rail, the welding device comprises a sliding seat, a first semicircular slide rail, a second semicircular slide rail, a sliding seat, a first semicircular arc plate, a second semicircular arc plate, a semicircular rack, a toothed ring, a servo motor, a columnar gear, a clamping ring and a welding gun, wherein the first semicircular slide rail and the second semicircular slide rail are connected to form the annular rail, the sliding seat is slidably arranged on the annular rail, the right parts of the inner walls of the first semicircular arc plate and the second semicircular arc plate are respectively provided with the semicircular rack, the semicircular racks on the first semicircular arc plate and the second semicircular arc plate are connected to form the toothed ring, the servo motor is fixedly arranged at the front end of the sliding seat, the output end of the servo motor is provided with the columnar gear, the columnar gear is meshed with the toothed ring, the mounting plate is fixedly arranged at the right end of the sliding seat, the two sets of bearing supports.
Preferably, the end of the jacking screw rod, which is far away from the conveying pipeline, is provided with a turntable.
Preferably, the top end of the adjusting screw rod is fixedly provided with an adjusting disc, and the adjusting disc is provided with a rotating handle.
Preferably, the end of the arc-shaped fixing plate, which is close to the conveying pipeline, is provided with a rubber pad.
Preferably, the right-hand member of mounting panel is provided with two sets of slide rails, adjust the seat and can slide from top to bottom and set up on two sets of slide rails.
Preferably, the first semicircular arc-shaped plate and the second semicircular arc-shaped plate are made of light aluminum alloy materials.
(III) advantageous effects
Compared with the prior art, the utility model provides a conveyer pipe way girth welding set possesses following beneficial effect: the conveying pipeline girth welding device comprises a first semicircular arc plate and a second semicircular arc plate which are sleeved on a conveying pipeline to be welded, the first semicircular arc plate and the second semicircular arc plate are connected into a whole through a connecting bolt and a butterfly nut, a jacking screw rod is rotated to enable an arc fixing plate to be in close contact with the outer wall of the conveying pipeline, each jacking screw rod is rotationally adjusted to enable the distance between the inner wall of the first semicircular arc plate and the outer wall of the conveying pipeline and the distance between the inner wall of the second semicircular arc plate and the outer wall of the conveying pipeline to be consistent, an adjusting screw rod is rotated to enable the height of an adjusting seat to be changed, so that a welding gun is in close contact with a part to be welded, a welding machine body and a servo motor are started, the servo motor drives a columnar gear to rotate around a toothed ring, so that a sliding seat rotates around a circular rail, the welding gun welds a girth on the conveying pipeline, welding is carried out by replacing manual work with machinery, and the, the efficiency is higher.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a left side view structure diagram of the present invention;
fig. 3 is a schematic view of the enlarged structure of a part a in fig. 1 according to the present invention;
in the drawings, the reference numbers: 1. a welding gun; 2. a welding machine body; 3. a first semi-circular arc plate; 4. a second semicircular arc-shaped plate; 5. a sliding seat; 6. a servo motor; 7. mounting a plate; 8. an adjusting seat; 9. a bearing support; 10. adjusting the lead screw; 11. a connecting bolt; 12. a butterfly nut; 13. an internally threaded tube; 14. tightly pushing the screw; 15. an arc-shaped fixing plate; 16. an annular rail; 17. a toothed ring; 18. a cylindrical gear; 19. a snap ring; 20. a turntable; 21. an adjusting disk; 22. turning a handle; 23. a rubber pad; 24. a slide rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model discloses a conveying pipeline girth welding device, which is used for welding a conveying pipeline with large diameter, and comprises a welding gun 1 and a welding machine body, wherein the welding gun 1 is electrically connected with the welding machine body 2; the device also comprises a first semicircular arc plate 3, a second semicircular arc plate 4, a sliding seat 5, a servo motor 6, a mounting plate 7, an adjusting seat 8, two groups of bearing supports 9 and an adjusting screw rod 10, wherein the front end and the rear end of the first semicircular arc plate 3 are both hinged with connecting bolts 11, the front end and the rear end of the second arc plate are both provided with open slots, butterfly nuts 12 are screwed on the connecting bolts 11, the first semicircular arc plate 3 and the second semicircular arc plate 4 are connected through the connecting bolts 11, two groups of internal thread pipes 13 are respectively arranged on the first semicircular arc plate 3 and the second semicircular arc plate 4, jacking screw rods 14 are screwed in the two groups of internal thread pipes 13, an arc fixing plate 15 is arranged at one end of the jacking screw rods 14 close to the conveying pipeline, the arc fixing plate 15 is rotatably connected with the jacking screw rods 14, the right parts of the inner walls of the first semicircular arc plate 3 and the second semicircular arc plate 4 are respectively provided with a first semicircular slide rail 24 and a second semicircular slide rail 24, the welding gun comprises a first semicircular slide rail 24, a second semicircular slide rail 24, a sliding seat 5, a first semicircular arc plate 3, a second semicircular arc plate 4, a semicircular rack, a toothed ring 17, a servo motor 6, a columnar gear 18, a mounting plate 7, a clamping ring 19 and a welding gun 1, wherein the first semicircular slide rail 24 and the second semicircular slide rail 24 are connected to form the annular rail 16; the first semi-circular arc-shaped plate 3 and the second semi-circular arc-shaped plate 4 are sleeved on a conveying pipeline to be welded, the first semi-circular arc-shaped plate 3 and the second semi-circular arc-shaped plate 4 are connected into a whole through a connecting bolt 11 and a butterfly nut 12, a jacking screw 14 is rotated to enable an arc fixing plate 15 to be in close contact with the outer wall of the conveying pipeline, each jacking screw 14 is rotatably adjusted to enable the distance between the inner walls of the first semi-circular arc-shaped plate 3 and the second semi-circular arc-shaped plate 4 and the outer wall of the conveying pipeline to be consistent, an adjusting screw 10 is rotated to enable the height of an adjusting seat 8 to be changed, so that a welding gun 1 is in close contact with a part to be welded, a welding machine body 2 and a servo motor 6 are started, the servo motor 6 drives a columnar gear 18 to rotate around a toothed ring 17, so that a sliding seat 5 rotates around a ring rail 16, the welding gun 1 can weld a, the welding quality is better, and the efficiency is higher.
In the utility model, the end of the jacking screw 14 far away from the conveying pipeline is provided with the rotary table 20; the jacking screw 14 is adjusted by rotating the turntable 20, so that the labor is saved; an adjusting disc 21 is fixedly arranged at the top end of the adjusting screw rod 10, and a rotating handle 22 is arranged on the adjusting disc 21; the adjusting disk 21 is rotated by rotating the rotating handle 22, so that the adjusting screw rod 10 can be adjusted in a rotating way more conveniently and more conveniently in a labor-saving way; the end of the arc-shaped fixing plate 15 close to the conveying pipeline is provided with a rubber pad 23; the rubber pad 23 can increase the friction force between the arc-shaped fixing plate 15 and the outer wall of the conveying pipeline, so that the relative sliding between the arc-shaped fixing plate 15 and the outer wall of the conveying pipeline is avoided, and the device can be more stably fixed on the conveying pipeline; two groups of sliding rails 24 are arranged at the right end of the mounting plate 7, and the adjusting seat 8 can be arranged on the two groups of sliding rails 24 in a vertical sliding manner; through the arrangement of the two groups of sliding rails 24, the adjusting seat 8 can be more stable when moving up and down; the first semicircular arc-shaped plate 3 and the second semicircular arc-shaped plate 4 are made of light aluminum alloy materials; the light aluminum alloy material can reduce the whole weight of the device, and is convenient for moving and installing the device.
When in use, the first semi-circular arc-shaped plate 3 and the second semi-circular arc-shaped plate 4 are sleeved on a conveying pipeline to be welded, the first semi-circular arc-shaped plate 3 and the second semi-circular arc-shaped plate 4 are connected into a whole through the connecting bolt 11 and the butterfly nut 12, the jacking screw rods 14 are rotated to enable the arc-shaped fixing plate 15 to be in close contact with the outer wall of the conveying pipeline, each jacking screw rod 14 is rotated and adjusted to enable the distance between the inner wall of the first semi-circular arc-shaped plate 3 and the inner wall of the second semi-circular arc-shaped plate 4 and the outer wall of the conveying pipeline to be consistent, the adjusting screw rod 10 is rotated to enable the height of the adjusting seat 8 to be changed, so that the welding gun 1 is in close contact with a part to be welded, the welding machine body and the servo motor 6 are started, the servo motor 6 drives the columnar gear 18 to rotate around the toothed ring 17, the sliding, welding is performed by replacing manpower with machinery, so that the welding quality is better and the efficiency is higher; the jacking screw 14 is adjusted by rotating the turntable 20, so that the labor is saved; the adjusting disk 21 is rotated by rotating the rotating handle 22, so that the adjusting screw rod 10 can be adjusted in a rotating way more conveniently and more conveniently in a labor-saving way; the rubber pad 23 can increase the friction force between the arc-shaped fixing plate 15 and the outer wall of the conveying pipeline, so that the relative sliding between the arc-shaped fixing plate 15 and the outer wall of the conveying pipeline is avoided, and the device can be more stably fixed on the conveying pipeline; through the arrangement of the two groups of sliding rails 24, the adjusting seat 8 can be more stable when moving up and down; the light aluminum alloy material can reduce the whole weight of the device, and is convenient for moving and installing the device.
The utility model discloses a conveyer pipe way girth welding set, welding machine body and servo motor all purchase to welding machine body and servo motor all carry out the electricity through the instruction manual of buying together and connect.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A conveying pipeline girth welding device is used for welding a conveying pipeline with a large pipe diameter and comprises a welding gun (1) and a welding machine body, wherein the welding gun (1) is electrically connected with the welding machine body (2); the device is characterized by further comprising a first semicircular arc-shaped plate (3), a second semicircular arc-shaped plate (4), a sliding seat (5), a servo motor (6), a mounting plate (7), an adjusting seat (8), two groups of bearing supports (9) and an adjusting screw rod (10), wherein the front end and the rear end of the first semicircular arc-shaped plate (3) are respectively hinged with a connecting bolt (11), the front end and the rear end of the second semicircular arc-shaped plate (4) are respectively provided with an open slot, a butterfly nut (12) is screwed on the connecting bolt (11), the first semicircular arc-shaped plate (3) and the second semicircular arc-shaped plate (4) are connected through the connecting bolt (11), two groups of internal thread pipes (13) are respectively arranged on the first semicircular arc-shaped plate (3) and the second semicircular arc-shaped plate (4), a jacking screw rod (14) is arranged in the two groups of internal thread pipes (13), and an arc-shaped fixing plate (15) is arranged at one end, close to a conveying pipeline, of the jacking screw rod (14), the arc-shaped fixing plate (15) is rotatably connected with the jacking screw rod (14), the right parts of the inner walls of the first semicircular arc-shaped plate (3) and the second semicircular arc-shaped plate (4) are respectively provided with a first semicircular slide rail (24) and a second semicircular slide rail (24), the first semicircular slide rail (24) and the second semicircular slide rail (24) are connected to form an annular rail (16), the sliding seat (5) is slidably arranged on the annular rail (16), the right parts of the inner walls of the first semicircular arc-shaped plate (3) and the second semicircular arc-shaped plate (4) are respectively provided with a semicircular rack, the semicircular racks on the first semicircular arc-shaped plate (3) and the second semicircular arc-shaped plate (4) are connected to form a toothed ring (17), the servo motor (6) is fixedly arranged at the front end of the sliding seat (5), the output end of the servo motor (6) is provided with a cylindrical gear (18), columnar gear (18) with ring gear (17) meshing, mounting panel (7) are fixed to be set up in the right-hand member of sliding seat (5), two sets of bearing support (9) are all fixed to be set up on mounting panel (7), adjust lead screw (10) rotatable setting on two sets of bearing support (9), adjust seat (8) and set up on adjusting lead screw (10), it is provided with snap ring (19) to adjust on seat (8) fixed, and welder (1) card is in snap ring (19).
2. The conveying pipe girth welding device according to claim 1, characterized in that the end of the tightening screw (14) far away from the conveying pipe is provided with a turntable (20).
3. The conveying pipeline girth welding device according to claim 2, characterized in that the top end of the adjusting screw (10) is fixedly provided with an adjusting disc (21), and the adjusting disc (21) is provided with a rotating handle (22).
4. A transfer pipe girth welding device according to claim 3, characterized in that the arc-shaped fixing plate (15) is provided with a rubber pad (23) near the transfer pipe end.
5. The conveying pipeline girth welding device according to claim 4, characterized in that the right end of the mounting plate (7) is provided with two sets of slide rails (24), and the adjusting seat (8) is slidably arranged on the two sets of slide rails (24) up and down.
6. The welding device for the circular seam of the conveying pipeline is characterized in that the first semi-circular arc-shaped plate (3) and the second semi-circular arc-shaped plate (4) are made of light aluminum alloy.
CN202020985863.XU 2020-06-03 2020-06-03 Conveying pipeline girth welding device Active CN212330226U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020985863.XU CN212330226U (en) 2020-06-03 2020-06-03 Conveying pipeline girth welding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020985863.XU CN212330226U (en) 2020-06-03 2020-06-03 Conveying pipeline girth welding device

Publications (1)

Publication Number Publication Date
CN212330226U true CN212330226U (en) 2021-01-12

Family

ID=74076015

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020985863.XU Active CN212330226U (en) 2020-06-03 2020-06-03 Conveying pipeline girth welding device

Country Status (1)

Country Link
CN (1) CN212330226U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113333908A (en) * 2021-05-13 2021-09-03 王克宝 Electric arc welding machine
CN113369759A (en) * 2021-06-30 2021-09-10 王晓光 Natural gas line welding equipment for municipal administration
CN113634936A (en) * 2021-07-22 2021-11-12 浙江鸿桦新能源科技有限公司 New energy special air conditioning system assembly and assembly processing equipment thereof
CN113695808A (en) * 2021-10-27 2021-11-26 南通久奇环保节能工程有限公司 Welding equipment for tank type chemical equipment
CN114131274A (en) * 2021-12-21 2022-03-04 浙江西子势必锐航空工业有限公司 Bidirectional expandable floating adjustable fixture
CN114211170A (en) * 2021-12-20 2022-03-22 扬州市美华电气有限公司 Shield cover multi-angle welding forming device
CN114700646A (en) * 2022-04-29 2022-07-05 南京良龙电力科技有限公司 Automatic welding device for electric iron accessories and using method thereof
CN115178841A (en) * 2022-01-14 2022-10-14 一重集团大连核电石化有限公司 Can be through TIG welding carriage of walking certainly of circumference slit
CN116460388A (en) * 2023-04-14 2023-07-21 重庆斌鑫金属制品有限公司 Arc welding device for automatic welding of revolving body
CN117506274A (en) * 2023-12-25 2024-02-06 江苏悦川机器人有限公司 Annular welding robot for pipeline welding

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113333908A (en) * 2021-05-13 2021-09-03 王克宝 Electric arc welding machine
CN113369759A (en) * 2021-06-30 2021-09-10 王晓光 Natural gas line welding equipment for municipal administration
CN113634936A (en) * 2021-07-22 2021-11-12 浙江鸿桦新能源科技有限公司 New energy special air conditioning system assembly and assembly processing equipment thereof
CN113695808A (en) * 2021-10-27 2021-11-26 南通久奇环保节能工程有限公司 Welding equipment for tank type chemical equipment
CN114211170A (en) * 2021-12-20 2022-03-22 扬州市美华电气有限公司 Shield cover multi-angle welding forming device
CN114131274A (en) * 2021-12-21 2022-03-04 浙江西子势必锐航空工业有限公司 Bidirectional expandable floating adjustable fixture
CN114131274B (en) * 2021-12-21 2024-04-30 浙江西子势必锐航空工业有限公司 Bidirectional expandable floating adjustable clamp
CN115178841A (en) * 2022-01-14 2022-10-14 一重集团大连核电石化有限公司 Can be through TIG welding carriage of walking certainly of circumference slit
CN114700646A (en) * 2022-04-29 2022-07-05 南京良龙电力科技有限公司 Automatic welding device for electric iron accessories and using method thereof
CN116460388A (en) * 2023-04-14 2023-07-21 重庆斌鑫金属制品有限公司 Arc welding device for automatic welding of revolving body
CN117506274A (en) * 2023-12-25 2024-02-06 江苏悦川机器人有限公司 Annular welding robot for pipeline welding

Similar Documents

Publication Publication Date Title
CN212330226U (en) Conveying pipeline girth welding device
CN112060592B (en) Welding robot is used in processing of angularly adjustable nodal pattern work piece
CN112872666A (en) Welding device
CN205571679U (en) Melt utmost point gas shielded arc welding tube sheet welding machine
CN214350618U (en) Rotary welding equipment for circular pipes
CN210587916U (en) Rotatable 90-degree elbow pre-welding platform
CN212095461U (en) Workpiece turnover device for automatic machine tool
CN211465325U (en) Fixing clamp for welding circular tube
CN210587899U (en) Welding device for transformer
CN217513165U (en) Welding device for producing and processing pin shaft product
CN206912595U (en) A kind of 90 ° of elbow internal wall built-up welding displacement devices
CN214721943U (en) Automatic seam welding tooling mechanism for circular elbow of air pipe
CN214518494U (en) Sheet metal component processing spot welding clamp
CN113751951A (en) Elbow welding device
CN209094870U (en) A kind of rotatable welding fixture
CN211614677U (en) Welding mechanical equipment
CN205096772U (en) Welding centre gripping frock of aluminium regulator for solar water heater
CN213531457U (en) Strutting arrangement is used in pipe fitting welding
CN211517087U (en) Be used for electric power construction electric power pipe cutting device
CN210451616U (en) Clamp for welding expansion joint
CN209190129U (en) Welding fixture is used in a kind of maintenance
CN219254453U (en) Plasma welding device for heat exchanger
CN220006514U (en) Welding device
CN216029071U (en) Elbow welding device
CN217862884U (en) Heat energy and power engineering pipeline quick connect device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A device for circumferential seam welding of conveying pipelines

Effective date of registration: 20220908

Granted publication date: 20210112

Pledgee: Bank of China Limited by Share Ltd. Cangzhou branch

Pledgor: HEBEI XINGDONG PIPELINE CO.,LTD.

Registration number: Y2022110000213

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20230925

Granted publication date: 20210112

Pledgee: Bank of China Limited by Share Ltd. Cangzhou branch

Pledgor: HEBEI XINGDONG PIPELINE CO.,LTD.

Registration number: Y2022110000213